1 files changed, 76 insertions, 0 deletions
diff --git a/devtools/server/tests/browser/browser_animation_getStateAfterFinished.js b/devtools/server/tests/browser/browser_animation_getStateAfterFinished.js
new file mode 100644
index 0000000000..038d7b4911
--- /dev/null
+++ b/devtools/server/tests/browser/browser_animation_getStateAfterFinished.js
@@ -0,0 +1,76 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+/* eslint-disable mozilla/no-arbitrary-setTimeout */
+
+"use strict";
+
+// Check that the right duration/iterationCount/delay are retrieved even when
+// the node has multiple animations and one of them already ended before getting
+// the player objects.
+// See devtools/server/actors/animation.js |getPlayerIndex| for more
+// information.
+
+add_task(async function () {
+  const { target, walker, animations } = await initAnimationsFrontForUrl(
+    MAIN_DOMAIN + "animation.html"
+  );
+
+  info("Retrieve a non animated node");
+  const node = await walker.querySelector(walker.rootNode, ".not-animated");
+
+  info("Apply the multiple-animations-2 class to start the animations");
+  await node.modifyAttributes([
+    { attributeName: "class", newValue: "multiple-animations-2" },
+  ]);
+
+  info(
+    "Get the list of players, by the time this executes, the first, " +
+      "short, animation should have ended."
+  );
+  let players = await animations.getAnimationPlayersForNode(node);
+  if (players.length === 3) {
+    info("The short animation hasn't ended yet, wait for a bit.");
+    // The animation lasts for 500ms, so 1000ms should do it.
+    await new Promise(resolve => setTimeout(resolve, 1000));
+
+    info("And get the list again");
+    players = await animations.getAnimationPlayersForNode(node);
+  }
+
+  is(players.length, 2, "2 animations remain on the node");
+
+  is(
+    players[0].state.duration,
+    100000,
+    "The duration of the first animation is correct"
+  );
+  is(
+    players[0].state.delay,
+    2000,
+    "The delay of the first animation is correct"
+  );
+  is(
+    players[0].state.iterationCount,
+    null,
+    "The iterationCount of the first animation is correct"
+  );
+
+  is(
+    players[1].state.duration,
+    300000,
+    "The duration of the second animation is correct"
+  );
+  is(
+    players[1].state.delay,
+    1000,
+    "The delay of the second animation is correct"
+  );
+  is(
+    players[1].state.iterationCount,
+    100,
+    "The iterationCount of the second animation is correct"
+  );
+
+  await target.destroy();
+  gBrowser.removeCurrentTab();
+});